Apple said the macOS Sierra 10.12.6 update “improves security, stability, and compatibility” and includes fixes for SMB connections from the Finder, unexpected restarts with Xsan clients and the Terminal app.

Plan on updating all of your Apple gadgets.Photo: Apple

This is the sixth Sierra update and likely the last before it releases macOS High Sierra sometime this fall. iOS 11 is also due out later this year.

“For our customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or released are available,” Apple states on its updates page.

Some of the language reads rather ominously. In many cases, the updates identify holes where “a remote attacker may be able to cause unexpected application termination” or “an application may be able to execute arbitrary code with system privileges.”

Apple employés cyber security experts who routinely put software through a battery of tests to determine if there are holes that could provide entry for malicious hackers. Apple also offers a “bug bounties” to hackers and software companies who find bugs and breaches.

Apple says it can’t guarantee customer protection if users are lax in updating their devices.